The power limit system will monitor the KW engine loading and the KVA generator loading of each engine/generator set. If any of these parameters reach their limits, the Power Limit circuit will reduce the power being delivered to the loads so that the load on each generator is held at its limit until the loads on the rig123.net' target='_blank'>SCR drives are reduced (by other action) to a level below the generator limit. The percent Power Limit is indicated by a meter on the Drillers Console. Warning lamps are illuminated on the front of the Drillers Console at a load level just below the power limit.

The function of the module test simulator is to test the static and dynamic functions of the AC and DC control modules. The process confirms that the modules will perform flawlessly as required for a drilling operation.

The PLC based BCS uses input from the draw works encoder backed by proximate installed in the mast to detect the position of the traveling gear and provide speed feedback and position from the traveling gear. Position information is compared to limits set via the HMI to ensure the traveling gear does not enter unsafe areas. The system includes the capability to limit block speed as well as position to further ensure safe operation. Automatic braking and manual bypass are available.

PCT has been designing and building SCR Control Systems utilizing proven technology for oil and gas applications. Each power system is manufactured to meet customer specifications and at the same time comply with the stringent requirements of the drilling industry. The philosophy of 100% redundancy has been incorporated throughout the system.

The power control house provides the features of economical operation and maintenance, compactness and portability. The self-supporting power control house is mounted on a three or four runner oilfield skid. Lifting eyes or a draw bar at each end of the house are provided for transportation on a trailer.

The house contains:

• The SCR or AC drives
• Generator control cubicles
• motor control center
• draw works dynamic brake control
• transformers and AC cooling units

Pct has been designing and building SCR drives utilizing proven technology for oil and gas applications. The philosophy of 100% redundancy has been incorporated throughout the system. TSC maintains a world-wide network of field service personnel and technicians that can support your operation on a 24 hour basis.

Features:

• Instrumentation and metering
• Engine speed and generator voltage
• Ground fault detection system
• Synchronizing panel
• Analog or digital controls